Center letter: a
Outer letter: c h n o p y
Answers (38):
  cacophony
  achoo
  achy
  ahoy
  ancho
  annoy
  anon
  anyhoo
  cacao
  cancan
  canna
  cannon
  canny
  canon
  canopy
  canyon
  capo
  capon
  chancy
  chap
  coach
  coca
  cocoa
  copay
  cyan
  happy
  naan
  nacho
  nana
  nanny
  papa
  papacy
  papaya
  pappy
  poach
  poppa
  yahoo
  yappy